2000 GSXR 750 surging...any ideas?
Hey there guys I just finished building a 2000 GSXR 750 that had been wrecked in fall of 04 and has been sitting in plastic wrap and a few boxes ever since. Well I got it about 1 month ago and I just finished rebuilding it! I will post a pic in a few min. It has 7700 miles on it, with a Yosh Pipe I think its a full system. I have checked the compression and it checks out! I have changed the plugs, oil filter, oil, coolant, and fuel, and air filter. This is the first bike I have worked on and I'm learning as I go.
My question: When I'm trying to hold a steady road speed it seams very difficult to stabilize my speed in any gear under 4500 rpm with out it surging as if I was modulating my wrist back and forth just a fraction. It feels like its changing back and forth from on throttle and off throttle. Is this common with fuel injected bikes or do I need to do some trouble shooting?
If this were a car I think I would check a throttle position sensor first. It seams fine all the way through the rpm range as far as tuning goes. It pulls smoothly anyways under acceleration. I was wonderning if this could be helped by a PCIII or any kind of mod like the pair valve?
Any idaes guys?